Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Allen Leavitt, MD

Individual provider Internal Medicine Physician · NPI 1588774988

Dr. William Allen Leavitt, MD is an Internal Medicine in Los Angeles, California. Qualified in 1985, 41 years ago. Practices with Northeast Valley Health Corporation, a 76-clinician group. Licensed in California.

Years since qualifying
41
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

849 W 34th St
Los Angeles, CA 90089-0311
Phone: (213) 740-9355
Fax: (213) 821-2781
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence G059258 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G059258 (CA)

Record details

NPI number1588774988
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 30, 2006
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Group practice Northeast Valley Health Corporation — 76 clinicians
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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